Paper-finishing roll



' (No Model.) I I j J. D. PIGKLES.

PAPER PINISHING'ROLL.

N0. 38'7,693. Patented Aug. 14, 188.8.

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N. PETERS. Pholu-Lhlwgrabber. Wanhington. D. C,

IlNiTe PATENT tries,

JAMES D. PICKLES, OF MANCHESTER, CONNECTICUT, ASSIGNOR OF TIVO- THIRDSTO PETER ADAMS, OF PATERSON, NEIV JERSEY, AND JAMES SYMINGTON, OFLANCASTER, PENNSYLVANIA.

PAPER-FINISHING ROLL.

SPECIFICATION forming part of Letters Patent No. 387,693, dated August14, less.

Application filed December 14, 1887. Serial No. 257,864. (No model.)

To all whom it may concern:

Be it known that I, JAMES D. PIOKLES, 'of Manchester, in the county ofHartford and State of Connecticut, have invented certain new and usefulImprovements in Paper-Finishing Rolls, of which the following is a full,clear, and exact description, whereby any one skilled in the art canmake and use the same.

The object of my improvement is to provide a machine by means of whichthe surface of paper may be more or less highly polished in theiinishing operation and while the paperis passing through thecalender-rolls; and to this end my improvement consists in thecombination of a stack of calender-rolls with an adjustable rotarypolishingroll arranged opposite one of the intermediate rolls of thestack, and adapted to be held in contact with paper passing over saidroll; and it further consists in details of the several parts and theircomblnation, as more particularly hereinafter described, and pointed outin the claims.

Referring to the drawings, Figure 1 is a view in end elevation of astack of calender rolls and embodying my improvement. Fig. 2 is a viewin vertical section of the machine, showing the position of thepolishing-roll,and 1n view beyond the system of levers and weights bymeans of which the} polishing-roll is held against the paper. Fig. 3 isa detail side view of the polishing-roll, showing the bearing for theroll and one of the rolls of the stack of rolls in contact with thepolishing-roll.

In prior machines of this class that most nearly resemble my improvedpapeupolishing machine a polishing-roll has been mounted directly overand arranged to operate with the top roll of a stack of calenders; butit has been found that such a polishing-roll can be used with only oneclass of papers,that require a particularly high degree of polish,andother grades and kinds of paper are torn and otherwise damaged by theoperation of the machine. I have discovered, however, that by locatingthe polishing-roll opposite to one of the intermediate rolls of a stackand arranging the polishing-roll to operate in connection with suchintermediate roll all of the faults and defects of old and prior devicesare overcome, and Iain enabled to operate the ma chine on all grades andkind of paper, and to obtain, without loss by reason of damage, thenecessary degree of polish and finish.

In the accompanying drawings, the letter (t denotes the frame of thestack; I) and b, verti- 5 5 cal standards rising from the bed andadapted to support the roll-bearing c; and c, d, e,f, and 9 denote aseries of rolls mounted one above the other and making up a series ofwhat is commonly known as a stack. These rolls, the supporting-frame,and the bearings for the rolls are of ordinary construction. To such aframe, and on one side thereof, is secured a bracket, it, that supportsthe bearings h for a roll, 13, that extends across the framein suchposition that its surface may be brought in rubbing contact with thesurface of an intermediate roll, 6, of the stack of rolls. The bearingsh for this polishing-roll i are adjustand may be held againstmovementaway from the roll 6 by means of the set-screws j, that passthrough threaded sockets in an upright arm of the bracket, and have ahandle by means of which the screws may be turned. The polishingroll iis made hollow, so that steam or hot water may be passed through it bymeans of pipes k 70', that are connected to opposite ends of the hollowshaft, on which each roll turns in the bearings. In order to drive thispolishing-roll, the pulleys Z Z on the opposite ends of this shaft areconnected by belts Z with a counter-shaft, Z on which is a cone-pulley,Z", that serves as a means for ad justing the rate of speed of thepolishing-roll. In order to hold the polishing-roll against the paperwith a yielding pressure while the pa per is passing over the roll 6,the upright arm on of the bent lever m is arranged to press inwardagainst the sliding bearing h of the roll, and the longer arm of thisbent lever is connected by the rod 02 with the lever 0, that bears aweight, 1), the arrangement of this system being such that acomparatively small weight may be used to exert a pressure upon the roll9 5 equal to many times its weight.

This polishing roll is driven at a greater rate of speed than the paperhas as it passes over the roll c, and the surface of the roll rubbingable in a horizontal plane toward the roll 6, 70

on the paper finishes and polishes it to any :00

degree desired, and owing to the fact that the paper is wrapped upon theroll a and is firmly held between the rolls (1, c, and f as it passesover the roll 0, there is no liability to tear the roll, a, of a stackof ealender rolls, the roll'supporting brackets h, secured to the frameof the stack, the polishingmoll t, supported on the brackets, theset-screws borne in the brackets and by means of which the outwardmovement of the roll is limited, and the system of levers and weight, bymeans of which the roll is held inward with a yielding pressure, allsubstantially as described.

JAMES D. PTGKLES.

With sses:

ino'non G. iIIAnnow, A. B. JENKINS.

